# Relationship history for MSHA mine 6000005

Current hierarchy: **Aveng Limited → MCCONNELL DOWELL AMERICAN SAMOA LTD → Quarry**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** MCCONNELL DOWELL AMERICAN SAMOA LTD → Quarry; 2016-04-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Aveng Limited → Quarry; 2016-04-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Aveng Limited → MCCONNELL DOWELL AMERICAN SAMOA LTD; 2016-04-04 to current/open; source msha-controller-operator-history